/*
 * Copyright (C) 2011 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.sample.android.wifi;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.NetworkInfo;
import android.net.wifi.p2p.WifiP2pDevice;
import android.net.wifi.p2p.WifiP2pManager;
import android.net.wifi.p2p.WifiP2pManager.Channel;
import android.net.wifi.p2p.WifiP2pManager.PeerListListener;
import android.util.Log;

/**
 * A BroadcastReceiver that notifies of important wifi p2p events.
 */
public class WiFiDirectBroadcastReceiver extends BroadcastReceiver
{
	private WifiP2pManager		manager;
	private Channel				channel;
	private WiFiDirectActivity	activity;

	/**
	 * @param manager
	 *            WifiP2pManager system service
	 * @param channel
	 *            Wifi p2p channel
	 * @param activity
	 *            activity associated with the receiver
	 */
	public WiFiDirectBroadcastReceiver(WifiP2pManager manager, Channel channel,
			WiFiDirectActivity activity)
	{
		super();
		this.manager = manager;
		this.channel = channel;
		this.activity = activity;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see android.content.BroadcastReceiver#onReceive(android.content.Context,
	 * android.content.Intent)
	 */
	@Override
	public void onReceive(Context context, Intent intent)
	{
		String action = intent.getAction();
		if (WifiP2pManager.WIFI_P2P_STATE_CHANGED_ACTION.equals(action))
		{
			// UI update to indicate wifi p2p status.
			int state = intent.getIntExtra(WifiP2pManager.EXTRA_WIFI_STATE, -1);
			if (state == WifiP2pManager.WIFI_P2P_STATE_ENABLED)
			{
				// Wifi Direct mode is enabled
				activity.setIsWifiP2pEnabled(true);
			}
			else
			{
				activity.setIsWifiP2pEnabled(false);
				activity.resetData();
			}
			Log.d(WiFiDirectActivity.TAG, "P2P state changed - " + state);
		}
		else
			if (WifiP2pManager.WIFI_P2P_PEERS_CHANGED_ACTION.equals(action))
			{
				// request available peers from the wifi p2p manager. This is an
				// asynchronous call and the calling activity is notified with a
				// callback on PeerListListener.onPeersAvailable()
				if (manager != null)
				{
					manager.requestPeers(channel,
							(PeerListListener) activity.getFragmentManager()
									.findFragmentById(R.id.frag_list));
				}
				Log.d(WiFiDirectActivity.TAG, "P2P peers changed");
			}
			else
				if (WifiP2pManager.WIFI_P2P_CONNECTION_CHANGED_ACTION
						.equals(action))
				{
					if (manager == null)
					{
						return;
					}
					NetworkInfo networkInfo = (NetworkInfo) intent
							.getParcelableExtra(WifiP2pManager.EXTRA_NETWORK_INFO);

					if (networkInfo.isConnected())
					{
						// we are connected with the other device, request
						// connection
						// info to find group owner IP
						DeviceDetailFragment fragment = (DeviceDetailFragment) activity
								.getFragmentManager().findFragmentById(
										R.id.frag_detail);
						manager.requestConnectionInfo(channel, fragment);
					}
					else
					{
						// It's a disconnect
						activity.resetData();
					}
				}
				else
					if (WifiP2pManager.WIFI_P2P_THIS_DEVICE_CHANGED_ACTION
							.equals(action))
					{
						DeviceListFragment fragment = (DeviceListFragment) activity
								.getFragmentManager().findFragmentById(
										R.id.frag_list);
						fragment.updateThisDevice((WifiP2pDevice) intent
								.getParcelableExtra(WifiP2pManager.EXTRA_WIFI_P2P_DEVICE));
					}
	}
}
